diff --git a/src/proto/window.pro b/src/proto/window.pro
index 5141b05..d675b71 100644
--- a/src/proto/window.pro
+++ b/src/proto/window.pro
@@ -18,12 +18,15 @@
 void close_windows(buf_T *buf, int keep_curwin);
 int one_window(void);
 int win_close(win_T *win, int free_buf);
+void snapshot_windows_scroll_size(void);
 void may_make_initial_scroll_size_snapshot(void);
 void may_trigger_winscrolled(void);
 void win_close_othertab(win_T *win, int free_buf, tabpage_T *tp);
 void win_free_all(void);
 win_T *winframe_remove(win_T *win, int *dirp, tabpage_T *tp);
 void close_others(int message, int forceit);
+void unuse_tabpage(tabpage_T *tp);
+void use_tabpage(tabpage_T *tp);
 int win_alloc_first(void);
 win_T *win_alloc_popup_win(void);
 void win_init_popup_win(win_T *wp, buf_T *buf);